 The general formats of the BROADCAST command are:

	BROadcast ttnn:message	! To send a message to one terminal
	BRO ALL:message		! To send a message to all terminals
	BRO LOG:message		! To send message to logged-in terminals
	BRO user-name message   ! To send a message to the user name of 
				  the person to receive it. (RSX-11M-PLUS 
				  systems with Resource Accounting only)
	BRO @filespec

 ALL and LOG are privileged options.

 If an indirect command file is used, each line has one of the following
 formats:

	ttnn:message
	ALL:message
	LOG:message
        user-name message
